xymonnet column missing

I've got the --report option set in xymonnet, and also the default xymonnet column defined in my hosts.cfg file, but there's no 'xymonnet' column appearing, and even if I manually enter the url that it's supposed to be it says 'Status not available'.  I read the man page and it seems that if I enable the --report function in xymonnet that it should work.  Ideas?